Isobavachin

(S)-2,3-Dihydro-7-hydroxy-2-(4-hydroxyphenyl)-8-(3-methyl-2-butenyl)-4H-1-benzopyran-4-one

(2S)-2,3-Dihydro-7-hydroxy-2-(4-hydroxyphenyl)-8-(3-methyl-2-buten-1-yl)- 4H-1-benzopyran-4-one